Great Lakes Advisors’s Mercury Systems MRCY Stock Holding History

Great Lakes Advisors’s Portfolio MRCY Stock Details MRCY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-21,595	Closed	-$1.57M	–	856
2026 Q1	$1.57M	Sell	21,595 -1,912	-8%	-$166K	0.01%	462
2025 Q4	$1.72M	Sell	23,507 -11,110	-32%	-$826K	0.01%	448
2025 Q3	$2.68M	Sell	34,617 -34,868	-50%	-$2.17M	0.02%	381
2025 Q2	$3.74M	Buy	+69,485	New	+$3.38M	0.03%	341

Other funds holding MRCY

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

JPM

JANA Partners Management New York $1.9B AUM 18.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

CCA

Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return

Great Lakes Advisors's MRCY Position: Q2 2026 in Review

Great Lakes Advisors sold out of Mercury Systems (MRCY) in Q2 2026, closing a stake of 21,595 shares — an estimated $1.57M sold.

Great Lakes Advisors first reported a position in MRCY in Q2 2025 and held it in 4 quarters. The position peaked at $3.74M in Q2 2025. 392 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

Great Lakes Advisors reported no remaining Mercury Systems position as of Q2 2026 after selling out during the quarter.
Great Lakes Advisors sold 21,595 Mercury Systems shares in Q2 2026, an estimated $1.57M.
Great Lakes Advisors first reported a position in Mercury Systems in Q2 2025 and held it in 4 quarters.
Great Lakes Advisors's Mercury Systems position peaked at $3.74M in Q2 2025.
392 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on Great Lakes Advisors's 13F filing for Q2 2026, filed 10 Aug 2026.